The sane-gphoto2 library implements a SANE (Scanner Access Now Easy)
backend that provides access to the digital cameras supported by
gphoto2. This backend has only been tested with a handful of cameras
so far. Patches to support other models are welcome.
Because of the limited testing of this backend, it is commented out in
/etc/sane.d/dll.conf by default. Either the comment character must be
removed or the backend must be called explicitly. E.g. `scanimage -d
gphoto2' or `xscanimage gphoto2'.
The current version of the backend only allows one camera to be con-
nected. The device name is always "0".
The contents of the gphoto2.conf specify the characteristics of the
camera to be used. Resolutions (high resolution, low resolution, and
thumbnail size) are required since they are needed by the sane fron-
tends, but can't be obtained through the gphoto2 interface. Valid
ports and cameras can be obtained by "gphoto2 --list-cameras" and
The dumpinquiry line causes some information about the camera to be
Empty lines and lines starting with a hash mark (#) are ignored. A
sample configuration file is shown below:
The "topfolder" line specifies the "fixed" part of the file path. For
example, on the Kodak DC-240, files are stored in the directory
/DCIM/100DC240. The /DCIM portion is constant, but 100DC240 will
change and must be read from the camera. In this case, the line would
Some cameras don't implement a file structure and store all pictures in
the "/" directory. This is indicated by setting "subdirs=0" with "top-
# this is a comment
The backend configuration file (see also description of
by a semi-colon (`;'). If this variable is not set, the config-
uration file is searched in two default directories: first, the
current working directory (".") and then in /etc/sane.d. If the
value of the environment variable ends with the directory sepa-
rator character, then the default directories are searched after
the explicitly specified directories. For example, setting
SANE_CONFIG_DIR to "/tmp/config:" would result in directories
"tmp/config", ".", and "/etc/sane.d" being searched (in this
If the library was compiled with debugging support enabled, this
environment variable controls the debug level for this backend.
A value of 128 requests maximally copious debug output; smaller
levels reduce verbosity.
Set to 1, 2, or 3, to enable various levels of debugging within
the gphoto2 libraries.
Peter S. Fales
The manpage was largely copied from the dc210 manpage.
Many, no doubt.
More general comments, suggestions, and inquiries about frontends or
SANE should go to the SANE Developers mailing list (see
http://www.sane-project.org/mailing-lists.html for details). You must
be subscribed to the list, otherwise your mail won't be sent to the
11 Jul 2008 sane-gphoto2(5)
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